Owner's Manual

We've come up with a pretty nice little primer for MQA and the Pre Box S2 Digital:
A few facts
to start -
MQA
can only be transmitted over USB from a computer right now.
As I understand, it's not compatible with any mobile devices yet.
The playback process for MQA is split into 2 stages, the decode and then the render.
o
These can be both handled by the same device and it should show "MQA" on the Pre
Box S2 Digital Display.
o
These can also be split between the computer, for the decode stage, and the Pre Box S2
Digital, for the render stage, which will be shown as "MQB" instead.
First thing
to try is seeing if the Pre Box is having issues with MQA in any form or if it can just be isolated
to streaming.
Select one
of the MQA test files from here: http : //www .2l.no/hires/index.html
By clicking on one of the MQA files, it should start playing and display MQA on the Pre Box
I'm using Firefox, but I'm assuming that nearly any modern browser would behave similarly.
MQA through Tidal
is usually pretty easy, but Tidal recently threw a pretty obscure curve at us.
In Tidal, open settings by clicking on the ellipses next to the user name in the upper left-corner
of the window.
For the selection labelled "Loudness Normalization" make sure
that this is DISabled.
o For some reason, if this is left enabled, it will completely defeat MQA through Tidal no
matter what
other settings are enabled.
Make sure
that Quality is set to "Master''
Just below that, in the sound settings, select the
Pre Box S2 Digital as the output and then click
on where
it says "More Settings"
Make sure
that all three of these options, "Use Exclusive Mode," "Force Volume," and
"Passthrough MQA," are enabled.
o
If the MQA is showing on the Pre Box S2 Digital's display, but playback is sounding
choppy,
it may be better in your system to disable the "Passthrough MQA" option.
o
Without "Passthrough MQA" enabled, that will move MQA's decode stage to the
computer's hardware and keep the
Pre Box S2 Digital as the renderer.
o This will show up
as "MQB" on the Pre Box S2 Digital Display.
If it's still not playing back MQA content correctly, disconnect the Pre Box S2 Digital from the computer
and reinstall the driver.
The driver can be found under downloads at https: //www.project-
audio.com/en/product/pre-box-s2-digital/
After the driver
is re-installed, re-connect the Pre Box S2 Digital and try following the previous steps
again
to see if anything has changed.
If following all these steps don't rectify the issue, please visit www.tinyurl.com/SumikoCustomerService
to fill out our Service Request form. It's best to fill the form in as much detail as possible so that I can
better understand which component in the process is failing.
As our new website becomes on line, we'll be building a FAQ section there where this information will be
housed as well.